Business scope: Scale,
Coating,
Highway Subgrade Engineering Professional Contracting Level One,
Highway Pavement Engineering Professional Contracting Level One,
Sell Ceramics,
Municipal Public Engineering Construction General Contracting Level One,
Construction General Contracting Level Three,
Bridge Engineering Professional Contracting Level One,
Foreign Engineering Projects That Are Compatible With Performance,
Highway Safety Facilities,
Tunnel Engineering Professional Contracting Level 2,
Professional Contracting Level 1,
Contracting And Its Strength,
Highway Traffic Engineering,
Own House Rental,
Hardware,
Building Materials,